Railway-tie.



A. R. CLARKE.

RAILWAY TIE. APPLICATION FILED snmaa, 190a Patented Aug. 3, 1909.

Wad /4 INVENTOR. [lira CZafe WITNESSES A TTORNE ALVA R. CLARKE, OFSEATTLE, WASHINGTON.

RAILWAY-TIE.

Specification'o'f Letters Patent.

1Patented Aug. 3, 1909.

' Application filed September 23, 1908. Serial No, 454,443.

" construction of a tie comprised of two concrete inembers which arechambered for the reception of the rail seat-block; second, in theconstruction-and adaptation of said seatbloeks to afford --a suitablesupport for the respective rails and which are reliably held inqplace bthe agency of the rail securing s 1 es; an third, in the manner ofemploying t e reinforcing elements to serve to stiffen and strengthenthe aforesaid concrete tiemembers as well as to maintain the latter in.spaced relation with each other for preventing the spread of therailsand yet allow of vibratibn to the individual members sl'ifii cientto accommodate the shocks imparted thereto from trains passing over thesame.

Referring to the accompanying drawings, Figure 1 is a perspective viewof a railwaytie embodying my invention with a rail shown as laid upon.one of the blocks, but

unsecured thereto. Fig. 2 is a view partly planand partly in horizontalsection; and

Fig. 3 is a view partly in side elevation and partly in longitudinalvertical sectionof the same. In Fig. 3 the rails of a track areillustrated as secured to the tie. Fig. 4 is a cross sectional .viewtaken through 44 of Fig. 2. Fig. 5 is a perspective view of a seatblock, shown detached.

' According to this invention, atie isformed of two concrete members 10which are of substantially rectangular configuration. The

top longitudinal and outermost transverse.

edges 1 1 of these members are, however, preferably chamfered to protectthe same from chipping through exposure to the changes in atmospheric orother conditions to which a tie is subjected. I

The two members ofa tie are disposed to be in alinement and aremaintained at some distance apart b the employment of a reinforcingmetallic coped bar, or link, 12 which is embedded in the concrete in themolding of the tie. The link is of a length so as .to have its loops, orextremities, 12- extend to within a short distance of the ends of thetie. The link is preferably arranged in a horizontal plane, asshown inFigs. 2 and 3.

. Each of the members 10 is apertu-red to furnish therein a chamber 13having parallel vertical sides :13, and ends 13 whlch are inclined to,slope downwardly toward each other in the respective members. Thesechambers are pro erably extended through the respectivemembers ,and liethe longitudinal axis of the tie and at a distance apart to correspondwith the vgage of the track where employed. Provided for each of thechambers 13 is a seating-box 14. of wood or equivalent 1naterial. Suchblocks are of a-wldth to fit within or be slightly less' thanthechambers and are of a similar configuration in a vertical longitudinal.plane to, but somewhat longer than, the res ec.

tive chambers, thus causing the blocks w ien inserted in place, as shownin Figs. 1 and 3, to protrude above the tie. 'Each block is providedwith a longitudinal slot 14, such as a saw-kerf, extending its .entirelength and of a depth somewhat less than that of the block.

15 and 16 represent filling pieces of wood or of correspondingly elasticmaterial which may advantageously be inserted within the ga 17 betweenthe members 10 above and be ow thelink 12 to prevent the dirt enteringthereat and not materially affecting the ingependent movements of thesaid tie memers.

In operation, the ties are laid upon or embedded in'the track-bed, asusual, and when properly adjusted as to height the rails 18 are securedin )lace by spikes 19 being driven into the seating blocks 14 so as topass through the slots 14' thereof, as shown in Fig. 3, whereby the woodat each side of. the

slots is spread to make a binding fit between the blocks and therespective chambers. The wood elements, that is, the blocks 14, and alsothe filling pieces 15 and 16 where utilized, may be treated preparatoryto their use with a suitable preservative, such as croosote, and, afterthe track is laid, a filler of tar may be poured into slots 14 toexclude water or dirt therefrom. v

The advantage derived from the use of a tie constructed in accordancewith my invention is due. principally to its flexibility that isattained by the separation of the rigid concretemembers by a couplinglink giving the requisite flexibiht Y 'to the -struc ture in that partof the uniting link which s ans the gap. The wood seating blocks a soserve to cushion-the jars encountered from a moving train, as' well asaffording convenient devices to cooperate to reliably secure the track.rails in spaced ositions. The seating blocks mwy'obvious y be renewedwhen unfittedfnlr l'urtheruse, consequently the life of a tile isgoverned by the durability of the concrete members and the a metalcoupling link-s therefor! Having described my invention, what I claim asnew and desilre to secure by Letters- Patent, is

1. A railway tie composed of two concrete members arranged to. havetheir adjacent ends in spaced relation, a link embedded in both of saidmembers and composed oi'sidfi and ends connecting the sides, said linksides extending across s'ald space between the members, a pair 0/1separate filling blocks ongaging on the top and bottom faces of saidlink sides and formed with a longitudinal slot terminating above thebottom sides of the blocks, said slots being adapted to receive therail-spikes whereby the latterspread the wood on opposite sides of theslot to make a binding fit between the blocks and the chambers therefor.

2. A railway tie composed. of aconcrete' member formed with a chamberhaving downwardly converging ends, and a wooden block having inclinedends to conformably engage said end walls of the chamber, said blockbeing fgorined with a longitudinal slot which extendsto points adjacentthe bottom side thereof, said slot being adapted to receive the .railspikes whereby the latter;

spread the .wood on opposite sides of the slot to make a the chamberstherefor.

3. A railway tie composed of two concrete members arranged ends are inspaced relation, a connecting member embedded in both of said concretemembers so as to extend across the space between said members at pointsmidway of the binding iit between the blocksandso that their adjacentheightof said concrete members, anda pair of separate filling blocksengaging the top and bottom'faces of said connecting member andextending flush with the topand bottom faces of said'concrete members. Ag p ALVA RCLARKE;

Witnesses:

HORACE BARNES, II. A. BnoNsoN.

